Issued: 1000hrs Saturday 4th August 2018
Duty forecaster: Garry Nicholson

Warm and humid at first

A warm air mass will reside across Britain at the start of the week, but this will be replaced by fresher air from the north Atlantic through the week. A breezy and showery pattern will develop - rain most frequent north & west. A risk of generally unsettled weather into next weekend.

For the weather for the next few days click here

Tuesday 07/08/18
Precise detail uncertain. Slack low pressure is expected to develop across the British Isles. A humid atmosphere is likely to destabilise into areas of thundery rain. Light winds mean some places could see prolonged downpours, whilst others stay dry. Fairly cloudy, with some hazy sun. Likely very warm and muggy in the south-east, but fresher toward the north-west. Highs 17 to 20C Scotland & Ireland, 23 to 30C England & Wales, warmest south-east.

Wednesday 08/08/18
Low pressure is expected to move across northern Britain from the west, setting up a fresher and more changeable westerly airflow. Areas of heavy showery rain, with possible thunder in places. Wettest toward the north and west, but bursts of rain may develop more widely through the day. Blustery winds, particularly around western coasts. Highs 16 to 21C north & west, 22 to 25C south-east.

Thursday 09/08/18
A fresher situation for all with Atlantic air extending across Britain. Areas of rain and heavy showers, most frequent in the north and west, but breaking out elsewhere through the day. Sunny spells. A fresh westerly breeze. Often dry south and eastern England. Highs 17 to 24C.
 

Friday 10/08/18
A general westerly airflow. Patchy rain in the north-west, but largely dry south & east. Some sunshine. A westerly breeze. Highs 17 to 23C.

Saturday 11/08/18
Low confidence: A mixed westerly pattern continues. A risk of falling pressure and rain becoming more widespread, but confidence low. Highs 16 to 23C.

Sunday 12/08/18
Low confidence: A risk of low pressure moving across Britain, producing areas of persistent rain or heavy showers. Blustery winds. Highs 16 to 23C.